Thankfully I don’t really know anyone like this, to my knowledge, but I couldn’t help be snarky as fuck if I did. I’d be sure to google it - immediately - then if they try to continue any sort of conversation I’d tell them to shut up while I deeply research the thing I was asking them about.

A couple friends work in the merchant navy and end up explaining a whole load of things that I have no clue about. If their answer to my questions were “just google it”, I’d be studying for years to be a Captain!